Diagnose and fix BESSER errors fast. Use this skill whenever the user is staring at a Python traceback, ImportError, ModuleNotFoundError, ValueError, TypeError, AttributeError, jinja2.TemplateNotFound, subprocess.CalledProcessError, or any other failure originating from BESSER (besser.BUML, besser.generators, besser.utilities).
Install
npx skills add BESSER-PEARL/BESSER-Skills --skill besser-troubleshootingnpx skills add BESSER-PEARL/BESSER-Skills --skill besser-troubleshooting -a claude-code -gnpx skills add BESSER-PEARL/BESSER-Skills --skill besser-troubleshooting -a codex -ggemini skills install https://github.com/BESSER-PEARL/BESSER-Skills.git --path skills/besser-troubleshootinggh skill install BESSER-PEARL/BESSER-Skills besser-troubleshootinggit clone --depth 1 https://github.com/BESSER-PEARL/BESSER-Skills /tmp/BESSER-PEARL__BESSER-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/BESSER-PEARL__BESSER-Skills/skills/besser-troubleshooting ~/.claude/skills/besser-troubleshooting # Claude Code
cp -R /tmp/BESSER-PEARL__BESSER-Skills/skills/besser-troubleshooting ~/.agents/skills/besser-troubleshooting # Codex, Cursor, Gemini CLI, Copilot, OpenCode